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Home > Programming > Application Development > Odoo 10 Development Essentials
Odoo 10 Development Essentials
Odoo 10 Development Essentials

Odoo 10 Development Essentials: Explore the functionalities of Odoo to build powerful business applications.

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Odoo 10 Development Essentials

Chapter 2. Building Your First Odoo Application

Developing in Odoo most of the time means creating our own modules. In this chapter, we will create our first Odoo application and learn the steps needed to make it available to Odoo and install it.

Inspired by the notable http://todomvc.com/ project, we will build a simple To-Do application. It should allow us to add new tasks, mark them as completed, and finally clear the task list of all the already completed tasks.

We will get started by learning the basics of a development workflow: set up a new instance for your work, create and install a new module, and update it to apply the changes you make along with the development iterations.

Odoo follows an MVC-like architecture, and we will go through the layers during our implementation of the To-Do application:

  • The model layer, defining the structure of the app's data
  • The view layer, describing the user interface
  • The controller layer, supporting the...

Essential concepts

You're probably just getting started with Odoo, so now is obviously a good time to explain Odoo modules and how they are used in an Odoo development.

Understanding applications and modules

It's common to hear about Odoo modules and applications. But what exactly is the difference between them?

Module addons are the building blocks for Odoo applications. A module can add new features to Odoo, or modify existing ones. It is a directory containing a manifest, or descriptor file, named __manifest__.py, plus the remaining files that implement its features. 

Applications are the way major features are added to Odoo. They provide the core elements for a functional area, such as Accounting or HR, based on which additional addon modules modify or extend features. Because of this, they are highlighted in the Odoo Apps menu.

If your module is complex, and adds new or major functionality to Odoo, you might consider creating it as an application. If your module just makes...

The model layer

Now that Odoo knows about our new module, let's start by adding a simple model to it.

Models describe business objects, such as an opportunity, sales order, or partner (customer, supplier, and so on). A model has a list of attributes and can also define its specific business.

Models are implemented using a Python class derived from an Odoo template class. They translate directly to database objects, and Odoo automatically takes care of this when installing or upgrading the module. The mechanism responsible for this is the Object Relational Model (ORM).

Our module will be a very simple application to keep to-do tasks. These tasks will have a single text field for the description and a checkbox to mark them as complete. We should later add a button to clean the to-do list of the old, completed tasks.

Creating the data model

The Odoo development guidelines state that the Python files for models should be placed inside a models subdirectory. For simplicity, we won&apos...

The view layer

The view layer describes the user interface. Views are defined using XML, which is used by the web client framework to generate data-aware HTML views.

We have menu items that can activate actions that can render views. For example, the Users menu item processes an action also called Users, that in turn renders a series of views. There are several view types available, such as the list and form views, and the filter options made available are also defined by a particular type of view, the search view.

The Odoo development guidelines states that the XML files defining the user interface should be placed inside a views/ subdirectory.

Let's start creating the user interface for our To-Do application.

Adding menu items

Now that we have a model to store our data, we should make it available on the user interface.

For that, we should add a menu option to open the To-do Task model so that it can be used.

Create the views/todo_menu.xml file to define a menu item and the action performed...

The business logic layer

Now we will add some logic to our buttons. This is done with Python code, using the methods in the model's Python class.

Adding business logic

We should edit the todo_model.py Python file to add to the class the methods called by the buttons. First, we need to import the new API, so add it to the import statement at the top of the Python file:

from odoo import models, fields, api

The action of the Toggle Done button will be very simple: just toggle the Is Done? flag. For logic on records, use the @api.multi decorator. Here, self will represent a recordset, and we should then loop through each record.

Inside the TodoTask class, add this:

@api.multi 
def do_toggle_done(self): 
    for task in self: 
        task.is_done = not task.is_done 
    return True

The code loops through all the to-do task records and, for each one, modifies the is_done field, inverting its value. The method does not need to return anything, but we should have it to at least return a True...

Essential concepts

You're probably just getting started with Odoo, so now is obviously a good time to explain Odoo modules and how they are used in an Odoo development.

Understanding applications and modules

It's common to hear about Odoo modules and applications. But what exactly is the difference between them?

Module addons are the building blocks for Odoo applications. A module can add new features to Odoo, or modify existing ones. It is a directory containing a manifest, or descriptor file, named __manifest__.py, plus the remaining files that implement its features. 

Applications are the way major features are added to Odoo. They provide the core elements for a functional area, such as Accounting or HR, based on which additional addon modules modify or extend features. Because of this, they are highlighted in the Odoo Apps menu.

If your module is complex, and adds new or major functionality to Odoo, you might consider creating it as an application. If your module just makes changes to existing...

The model layer

Now that Odoo knows about our new module, let's start by adding a simple model to it.

Models describe business objects, such as an opportunity, sales order, or partner (customer, supplier, and so on). A model has a list of attributes and can also define its specific business.

Models are implemented using a Python class derived from an Odoo template class. They translate directly to database objects, and Odoo automatically takes care of this when installing or upgrading the module. The mechanism responsible for this is the Object Relational Model (ORM).

Our module will be a very simple application to keep to-do tasks. These tasks will have a single text field for the description and a checkbox to mark them as complete. We should later add a button to clean the to-do list of the old, completed tasks.

Creating the data model

The Odoo development guidelines state that the Python files for models should be placed inside a models subdirectory. For simplicity, we won't be following this...

The view layer

The view layer describes the user interface. Views are defined using XML, which is used by the web client framework to generate data-aware HTML views.

We have menu items that can activate actions that can render views. For example, the Users menu item processes an action also called Users, that in turn renders a series of views. There are several view types available, such as the list and form views, and the filter options made available are also defined by a particular type of view, the search view.

The Odoo development guidelines states that the XML files defining the user interface should be placed inside a views/ subdirectory.

Let's start creating the user interface for our To-Do application.

Adding menu items

Now that we have a model to store our data, we should make it available on the user interface.

For that, we should add a menu option to open the To-do Task model so that it can be used.

Create the views/todo_menu.xml file to define a menu item and the action performed by...

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Key benefits

  • Get the most up-to-date guide on Odoo 10 and learn how to build excellent business applications with Odoo
  • This example-rich, easy-to-follow guide enables you to build apps appropriate to your business needs
  • Create solid business applications with the help of this precise, to-the-point guide

Description

Odoo is one of the fastest growing open source, business application development software products available. With announcement of Odoo 10, there are many new features added to Odoo and the face of business applications developed with Odoo has changed. This book will not only teach you how to build and customize business applications with Odoo, but it also covers all the new features that Odoo has to offer. This book is the latest resource on developing and customizing Odoo 10 applications. It comes packed with much more and refined content than its predecessor. It will start with building business applications from scratch and will cover topics such as module extensions, inheritance, working with data, user interfaces, and so on. The book also covers the latest features of Odoo 10, in addition to front end development, testing and debugging techniques. The book will also talk about Odoo Community and Odoo Enterprise.

Who is this book for?

This book caters to developers who are familiar with Python and MVC design and now want to build effective business applications using Odoo.

What you will learn

  • Install Odoo from source code and use all the basic techniques to setup and manage your Odoo server instances
  • Create your first Odoo application
  • Add Odoo s social and messaging features to your own modules
  • Get to know the essentials of Models and Views
  • Understand and use the server API to add business logic
  • Use Qweb to create custom Reports
  • Extend Odoo CMS features to create your own website controllers and pages and leverage Odoo Workflows on your applications
  • Write module automated tests and debugging techniques
  • Deploy your Odoo applications for production use

Product Details

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Publication date : Nov 30, 2016
Length: 298 pages
Edition : 1st
Language : English
ISBN-13 : 9781785887727
Vendor :
Odoo S.A
Category :
Programming
Languages :
Python
Concepts :
Application Development
Tools :
Odoo

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Publication date : Nov 30, 2016
Length: 298 pages
Edition : 1st
Language : English
ISBN-13 : 9781785887727
Vendor :
Odoo S.A
Category :
Programming
Languages :
Python
Concepts :
Application Development
Tools :
Odoo

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Table of Contents

13 Chapters
1. Getting Started with Odoo Development Chevron down icon Chevron up icon
1. Getting Started with Odoo Development
Setting up a host for the Odoo server
Installing Odoo from the source
Initializing a new Odoo database
A word about Odoo product versions
More server configuration options
Developing from your workstation
Installing third-party modules
Summary
2. Building Your First Odoo Application Chevron down icon Chevron up icon
2. Building Your First Odoo Application
Essential concepts
The model layer
The view layer
The business logic layer
Setting up access security
Better describing the module
Summary
3. Inheritance – Extending Existing Applications Chevron down icon Chevron up icon
3. Inheritance – Extending Existing Applications
Adding sharing capabilities to the To-Do app
Extending models
Extending views
More model inheritance mechanisms
Modifying data
Summary
4. Module Data Chevron down icon Chevron up icon
4. Module Data
Understanding external identifiers
Exporting and importing data
Module data
XML data files
Summary
5. Models – Structuring the Application Data Chevron down icon Chevron up icon
5. Models – Structuring the Application Data
Organizing application features into modules
Creating models
Creating fields
Relationships between models
Computed fields
Model Constraints
Summary
6. Views - Designing the User Interface Chevron down icon Chevron up icon
6. Views - Designing the User Interface
Defining the user interface with XML files
Context and domain
The form views
View semantic components
Dynamic views
List views
Search views
Calendar views
Graph and pivot views
Other view types
Summary
7. ORM Application Logic – Supporting Business Processes Chevron down icon Chevron up icon
7. ORM Application Logic – Supporting Business Processes
Creating a wizard
Working with the ORM API
Working with recordsets
Summary
8. Writing Tests and Debugging Your Code Chevron down icon Chevron up icon
8. Writing Tests and Debugging Your Code
Unit tests
Adding unit tests
Writing test cases
Setting up tests
Testing exceptions
Running tests
About YAML tests
Development tools
Summary
9. QWeb and Kanban Views Chevron down icon Chevron up icon
9. QWeb and Kanban Views
About kanban boards
Designing kanban views
The QWeb templating language
Inheritance on kanban views
Custom CSS and JavaScript assets
Summary
10. Creating QWeb Reports Chevron down icon Chevron up icon
10. Creating QWeb Reports
Installing wkhtmltopdf
Creating business reports
QWeb report templates
Presenting data in reports
Rendering images
Summary totals and running totals
Defining paper formats
Enabling language translation in reports
Reports based on custom SQL
Summary
11. Creating Website Frontend Features Chevron down icon Chevron up icon
11. Creating Website Frontend Features
Roadmap
Our first web page
Building websites
Website forms
Summary
12. External API – Integrating with Other Systems Chevron down icon Chevron up icon
12. External API – Integrating with Other Systems
Setting up a Python client
Calling the Odoo API using XML-RPC
Writing a Notes desktop application
Introducing the ERPpeek client
Summary
13. Deployment Checklist – Going Live Chevron down icon Chevron up icon
13. Deployment Checklist – Going Live
Available prebuilt packages
Installing dependencies
Multiprocessing workers
Using a reverse proxy
Server and module updates
Summary

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Customer reviews

Rating distribution
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The book to have for anyone looking to start developing application on odoo. I have the older book also. The writers have taken a lot of effort for clarity and make the matter understandable.What the reader needs: good understanding of programming logic (any language) and a very good handle on sql queries.
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About the author

Profile icon Daniel Reis
Daniel Reis
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Daniel Reis has a degree in applied mathematics and an MBA. He has had a long career in the IT industry, mostly as a consultant implementing business applications in a variety of sectors. He has been working with Odoo (OpenERP at the time) since 2010 and is an active contributor to the Odoo Community Association (OCA), where he also serves as a board member. He is the managing director of Open Source Integrators, a leading open source and Odoo consultancy firm.
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